implement /product-properties endpoint

[alexdunnjpl]

🗒️ Summary

Implements a new endpoint, /properties, which returns metadata about the searchable fields which users may use in their raw queries (q=)

This is pulled directly from the registry OpenSearch index and is thus fast and reliable.

⚙️ Test Data and/or Report

Need to add a Postman test for this, but that can wait until Monday

Postman test added in registry PR

♻️ Related Issues

Fixes #277

[alexdunnjpl]

@tloubrieu-jpl is the postman collection in service/src/test/resources actually supposed to contain any tests, or just a sample set of requests? Can't tell if it's the latter or if I'm just missing something silly.

[tloubrieu-jpl]

I am not approving it yet because some point requires discussion.

[tloubrieu-jpl]

@alexdunnjpl regarding your question on test in postman, we are having a few. They can be found in the Test tab of each request. See screenshot:

[alexdunnjpl]

@alexdunnjpl regarding your question on test in postman, we are having a few. They can be found in the Test tab of each request. See screenshot:

@tloubrieu-jpl where are you pulling that from? Loading the service tests file from this repository doesn't populate the tests tab with anything.

[tloubrieu-jpl]

Hi @alexdunnjpl , you are right the file you are using is obsolete and should be removed. The one to use is in the registry repository https://github.com/NASA-PDS/registry/blob/main/docker/postman/postman_collection.json
Sorry about that.

[alexdunnjpl]

@tloubrieu-jpl please review at your leisure (I think we ironed out the outstanding questions?)

Type stuff is at the following locations:
https://github.com/NASA-PDS/registry-api/pull/322/files#diff-efe8b5acb4310cc66513c73b36c8564a1aac7efcfd581be3c8bf0c1411f190a1R1307
https://github.com/NASA-PDS/registry-api/pull/322/files#diff-7bb6eb16a239a0e1d6422eaf4cece3577003084597f76d4ec0c2b8bdc7e0a673R148

[alexdunnjpl]

Bypassing requested-changes block due to more-recent approval by other code owner